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參數(shù)資料
| 型號(hào)： | TB62218FNG |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, PDSO48 |
| 封裝： | 0.300 INCH, 0.50 MM PITCH, PLASTIC, TSSOP-48 |
| 文件頁數(shù)： | 20/24頁 |
| 文件大?。?/td> | 463K |
| 代理商： | TB62218FNG |
TB62218FNG
2010-10-07
5
Output Function Table
Input signal
Output
PHASE_A
PHASE_B
IN_A1
IN_B1
IN_A2
IN_B2
OUT_X
X
_
OUT
IOUT
H
L
100%
H
L
H
L
71%
L
H
L
38%
H
L
Outputs disabled
0%
H
L
H
-100%
H
L
H
-71%
L
H
L
H
-38%
L
Outputs disabled
0%
IOUT: The current which flows OUT_X to
X
_
OUT
is defined plus current. The current which flows
X
_
OUT
to OUT_X
is defined as minus current.
Input signals to IN_X and PHASE_X after the voltage range of the motor being used is attained.
(*X: A1, A2, B1. B2)
Other Functions
Pin Name
H
L
Notes
BY
STAND
Normal operation
mode
Standby mode
When
BY
STAND
is Low, both the oscillator and output drivers
are disabled. The TB62218FNG can not drive a motor.
Detection Features
(1)
Thermal shutdown (TSD)
The thermal shutdown circuit turns off all the outputs when the junction temperature (Tj) exceeds 150°C
(typ.). The outputs retain the current states.
The TB62218FNG exits TSD mode and resume normal operation when the TB62218FNG is rebooted or the
BY
STAND
pin is changed from High to Low and then to High.
(2)
Power-ON-resets (PORs) for VMR and VCCR (VM and VCC voltage monitor)
The outputs are forced off until VM and VCC reach the rated voltages.
(3)
Overcurrent shutdown (ISD)
Each phase has an overcurrent shutdown circuit, which turns off the corresponding outputs when the output
current exceeds the shutdown trip threshold (above the maximum current rating: 2.0A minimum).
The TB62218FNG exits ISD mode and resume normal operation when the
BY
STAND
pin is changed from
High to Low and then to High.
This circuit provides protection against a short-circuit by temporarily disabling the device. Important notes
on this feature will be provided later.
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